Bean-separating machine.



0. E. SMITH.

BEAN SEPARATING MACHINE.

APPLICATION FILED 001. 23, 1913.

Patented Sept. 8, 1914.

1%,; ATTORNEY THE NORRIS PETERS co. PHOTO-LITHO.. WASHINGTON, D. C.

unrrnn srarns CHARLES E. SMITH, OF SAGINAW, MICHIGAN.

BEAN-SEPARATING MACHINE.

T 0 all 107mm it may concern Be it known that I, CHARLES E. SMITH, acitizen of the United States, residing at Saginaw, in the county ofSaginaw and State of Michigan, have invented certain new and usefulImprovements in Bean-Separating Machines; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it a ppcrtains tomake and use the same.

This invention relates to bean-separating machines.

The object of my invention is to provide a machine so constructed thatthe rapid sepa ration of the various grades of beans may be attained.

The object of my invention is attained by progressively distributingbeans over the upper laterally sloping surfaces of an ad justableinclined table and the laterally sloping upper surfaces of an adjustableauxiliary inclined table. The beans are distrib uted along the maininclined table by means of closely spaced scraper blades. The perfeetshaped beans roll downwardly and over the sides of the main table, whilethe rough or misshaped grade of beans, clay and foreign substances areretained and distributed over an auxiliary inclined table, where theyroll or slide downwardly over the side edges thereof. The badly splitbeans, clay and foreign substances, owing to their reluctance to roll orslide, are retained by the scraperblades and delivered over the end ofthe inclined auxiliary table.

Further objects of the invention are to provide a simple, inexpensive,yet eflicient machine for separating beans that consists in certainnovel features of construction, arrangement and combination of parts, orthe equivalents thereof, as hereinafter described and claimed.

Referring to the accompanying drawings forming a part of thisspecification wherein like characters of reference denote similar partsthroughout the several views: Figure 1 is a plan view of a beanseparating machine embodying my improvements. Fig. 2 is a sectional viewtaken on line 2-2 of Fig. 1. Fig. 3 is a detail showing in end elevationthe front sprockets, chains, main table and a pair of scraper blades.Fig. 4 is a detail showing the hinge connection between the two inclinedtables.

As clearly shown in the drawings, 1 desig- Spceification'of LettersPatent.

Application filed October 23, 1913.

Patented Sept. 8, 1914.

Serial No. 796,857.

nates the supporting frame of my bean-separating machine. One or moremain inclined tables 2 having laterally sloping up per surfaces 3 aresuitably mounted at one end on'the supporting frame. Each main table :2is mounted at its front end upon a cross-bar a carried in verticallyadjustable blocks 5, which blocks are carried in guides 6 and adjustedup or down by means of adjusting-screws 7. The main tables are adaptedto set at an incline and the upper ends of the tables are adapted tomove, thus changing the inclination of the tables when the adjustingscrews 7 are turned.

A plurality of scraper-blades having a straight section 8 and theopposed diverging or diagonally disposed sides 9 extending therefrom aresecured at their ends in suitably spaced relation, to drive chains 10,which chains are mounted over sprockets 11 suitably supported at eachend of the machine. The sprockets are driven by any suitable means, as abelt over a stepped cone pulley, as shown in Fig. 1. The scraper bladeshave their lower edges 12 shaped to conform to the laterally slopingsurfaces of the inclined tables. The diagonally disposed ends of thescraper-blades assist the rolling tendency of the perfect beans andutilize the reluctancy of the poorest split beans and foreign substanceto roll or slide by crowding them toward the center or high part of thetables and finally depositing them over the end of an auxiliary table.

Suitably hinged, at 13, to the lower end of the main table 2 is anauxiliary table 1 1 having the laterally sloping upper surfaces 15. Theauxiliary table 1 1 may be inclined to any desirable degree of slantindependent of the main table, by means of a cord 16, or its equivalent.

The auxiliary table let is an important feature of the invention and itsaves a grade of imperfect shaped beans known as second grade, whereas,with prior machines of this type, this grade of beans has been deliveredwith the clay and wasted.

Suitably supported stationary hoppers 17 located at the upper end of themachine are each provided with a hinged bottom 18 having its free endengaging the top edges of the straight sections of the scraper-blades 8as they travel downwardly over the main table, thereby automaticallyfeeding beans from the hopper upon the main tables between the scraperblades. The feed is accomplished by the up-and-doi n movement that isimparted to the hinged bottom. lhe quantity of beans to be delivered toeach space may be regulated by the slide 19 adjustably mounted on eachhopper.

A suitable tray is arranged beneath the machine containing threecompartments Jr, 13 and. (I, but their eipiivalents may be en1- ployedin the form of spouts or the like.

From the above desiription, it will. be observed that .l provide amachine ilt'or separating beans, 'u'lu :bv the perfectly shaped beanswill roll down the laterally sloping upper surlfaces oi the maininclined table andv drop over the side edges thereof into compartment A;and 'n'hereby the rough shaped beans, split beans and the clay and:loreign substances will. be moved by the scraper blades to the inclinedauxiliary table, The auxiliary tables bein at a greater incline than themain table, the roughly shapi'ed and best grade otli split beans willroll or slide down the laterally sloping upper surfaces oil? th 2auxiliary table and drop over the side thereof into con'ipartinent l3,while the poorest, split and the foreign substances will be moved by thescraper blades and dropped over the end. of the auxiliary table, owingto their reluctancy to roll or slide down the laterally sloping uppersin--- laces ot the uxiliary table.

ll ai'iu thus d eseribed my invention, What l claim and desire to secureby Letters l9; tent is:

1, 1.. A. bean separating machine con'iprising av sul'iporting ilranie,an adjustable loi'igitu- (anally inclined. table having a laterallyincliued si'lrilace and niorabl: scraper blades baring a straight backand diagonally disposed sides (lllSPOSGil above said table, for thepurpose set forth.

.l, bean. separating machine comprising a supporting frame, alongitudinally inclined table having laterally sloping sides supportedthereby, a yerticil adjusting (If \lce locatel at one end of said tableand winged scrapm' blades arranged in close spaced. relation to form aconveyor disposed above said table and adapted to lllOfG downrardlyalong; said table, for the purpose set torth.

l n a bean sepa at-ins n'iaehine, the combination with a suitablefeeding device; of a longitiulinally inclined table having laterallysloping upper surfaces, means for vertically adjusting the upper end ofsaid table; a secor l longitudinally inclined table connected to saidtirstanentioued and having laterally sloping upper and a bean scrapingconveyor co1npi ising spaced blades havii a straight back andilliagonally opposed side Wings iuteg all therewith adapted to morer'lownwari'lly along the upper surli'acis of said tables, for thepurpose set il orth.

l. The coinbinatirai of a main inclined table having later: lly slopingsur'laces; an :HlXl iary table having laterally sloping sur "rt-iceshingedly connectcijl to said inain table, and a couwyer disposed abovesaid tables and adai ited to more ilowimardhy thereon eoniprisiondrivechains and a plurality of closely spaced scr: per blades having str:iigh t bae i nd dizugonally disposed sides, the ends o'l said sidessecured to said drive chain and the loi edges of said blade being shapedto conform to the laterally sloping surfaces 0*? said table.

:. The combination ot a main inclined.

table haying laterally sloping surilfaces, an ad usting screw to!\'ertui'.ally KljllStillg the upper end of said niain table to changethe longitudinal inclinationthereof an auxilr r 1 ary table havinglaterally sloping surraces hingedly connected to said niain inclincilCopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

viastir flr

